Music-leaf turner



Dec. 15, 1925- v J. P. PLAMONDON MUS I C LEAF TURNER Filed May 7, 1923 3 Sheets-Sheet 1 Dec. 15, 1925- 1,565,814 J. P. PLAMONDON MUSIC LEAF TURNER Filed May 7, 1923 3 Sheets-Sheet 2 J. P. PLAMONDON MUSIC LEAF TURNER 'Dec. 15,1925

3 Sheets-Sheet 3 Filed May 1923 fitter neg Patented Dec. 15,

Met-5,814

JOSEPH PIERRE PLAMONDON, OF ST. 300E, QUEBEC, CANADA.

MUSIC-LEAF TURNER.

Application filed May 7, 1923.

T 0 all whom it may concern:

Be it known that I, Josnrr-r Pinnnn PLA- MONDON, residing at St. Roch, Quebec, Canada, and subject of the King of Great Britain, have invented certain new and useful Improvements in Music-Leaf Turners; and I do hereby declare that the following is a full, clear, and exact description of the invention such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to music leaf turners, and the primary object is to provide a device of this character that is automatic in some of its operations and is simple in construction.

The device is provided with a number of carriers, one of which may be attached to each sheet of abook or folio of music, and by means of which the sheets may be turned in either direction. The arrangement of the dev ce is such that the operating means will be in close proximity to the hand of the musician, when supported in proper position.

The invention is illustrated in the accompanying drawings, in which:

Figure 1 is a front elevation of the device;

Figure 2 is a plan view thereof;

Figure 3 is an enlarged detail of the base, corresponding to Figure 1;

Figure 4 is a section on the line 4t-t of Figure 3;

Figure 5 is an elevation corresponding to Figure 1 with the front parts removed;

Figure 6 is a section on the line 66 of Figure 5;

Figure 7 is a section on the line 7-7 of Figure 3;

Figure 8 is a fragmentary elevation on the line 8-8 of Figure 2; and,

Figure 9 is a perspective view of the carriage.

Referring to the accompanying drawings Serial No. 637,401.

' U are secured to the frame by means of bolts 7 passing through rearwardly extending flanges of the arms 1 and through flanges 8 extending rearwardly from the body 6. The saddle 6 of the U has outwardly extending flanges 7, by means of which and the clamps the shelf 3 is supported. The back member 9 is secured to the open side of the body by means of a bolt and nut device 10. The upper end of the back is enlarged, as at 11, where it carries three semi-circular arches 12, 13, 14, secured to the back by means of bolts passing through the lugs 15. The enlarged part of the back is reinforced by a strip 16. which extend inwardly from the back, support a shaft 18 to which are pivoted a plurality of leaf carriers 19. The inner ends of these carriers are separated from one another by means of washers 20, and they are held pressed together by means of a spring 21. The free ends of these carriers extend through the guide way 22 which is formed by the arches 12 and 13. These free ends are hooked as at 23 and support clamps 24 each of which is adapted to receive a leaf or sheet of music.

The lower end of the back extends beneath the shelf 5, where it carries a box 25 secured thereto in any suitable manner. The upper wall of the box has apertures 26 through which pass spindles 27 journalled in the lower wall of the box as at 28. The upper ends of these spindles have their bearings in a flange 29 provided at the top of the back. The upper ends of these spindles have secured thereto arms 30, and since the construction and operation of the devices associated with these arms are alike, only one of them will be described. In the guide way 31 formed by the arches 13 and 14, carriages 32 are supported for sliding movement on the inner side of the arches, by means of lugs 33, which extend through the guide way to the outside of the arches. The rear side of each carriage has pivoted thereto a dog 34 provided at one end with a tooth 35 adapted to seat in a notch 45, one at each end of arch 13, the objects of which will later be pointed out. The carriage is slotted, as at 36, above the pivoted point of the dog, and the arm 30 is adapted to pass through this slot and through the guide way 31. The top of the dog 34L is in the nature of a cam so that the dog will be actuated by the lateral movement of the arm A pair of journal members 17 30. The carriers 19 are locked at each end of the arches, near the back of the device, by means of the lip 37 of a recess 88 formed in the underside of the arch 13. Expansion springs 39 (Fig. 52) secured to the back urge the carriers against the lips 37, so that there is always a carrier beneath the dog 34.

For the purpose or" rotating the spindles 27, these are twisted at their lower ends as at 40. Screw keys 41 are provided at their inner ends with slots 42 for surrounding the twisted part of the spindles. These keys are fulcrun'ied in openings 44 in the end of the box 25. When a screw key is pushed downwardly, the slotted end 42 will rise, whereupon the corresponding spindle 27 is rotated. The twists 40 are opposite to one another so that operation of one of the screw keys 41 turns the corresponding spindle 37 in a given direction. while the operation of the other screw keys turn the other spindle 'n opposite direction. The arm is then turned toward the center of the arches, whereupon the inner end ofthe dog 34 is pressed downwardly. The tooth 35 rises out or" the notch 45 and is free to travel in the guideway 31. As the lower end of the dog is depressed, a carrier 19 is released -from the lip 37, whereupon it is moved torwardly with the carriage as the spindle 27 continues to rotate. The inner end 42 oi each screw key carries an expansion spring 46, one end of which is mounted in the top of the box 25, thus when an end 42 is raised, it is automatically depressed by the spring 46, whereupon the spindle is rotated in the reverse direction and the carriage 32 returned to its original position.

The shelf 5 is cut out, as at 47, and the ends are perforated as at 48 for the reception of a pin 49. The inner end of the pin carries ahead 50 adapted to be received in the notches 51 of a rack 52 secured to the saddle 6. A spring 53 surrounds the pin within the cut out portion 47. This spring tends normally to hold the head in engaget with one of the notches. lVhen the pin is pulled outwardly, the shell may s ide along the flanges 7 and may thus be adjusted at any desired height on the rack. The edge of the shelf 5 and the saddle 6 carry spring clips and 55 respectively. The former spring retains the cover of the book or folio, while the spring is inserted at the binding strip. The back member 9 is slotted as at 56 for the purpose of supporting a clamp 57 by means of a bolt and nut device 58. The clamp is to be used when it is desired to secure the leaf turner to a music stand.

In operation, the folio or book is mounted on the shelf 5 and is secured to the body of the device by means of clips 54, 55. A clamp 24 is secured to each leaf of music. WVhen it is desired to turn a leaf to the right or to the left, the corresponding screw key 41 is depressed whereupon a carrier 19 is actuated in the manner already described.

WVhile a specific embodiment of the invention has been illustrated and described, it is to be understood that various alterations in the details of construction may be made without departing from the spirit of the invention as indicated by the appended claims.

Elaving thus fully described the invention, what I claim as new and desire to protect by Letters Patent is l. A music leaf turner comprising a body and a back, spaced guide members secured thereto and forming two guide ways, a carriagz: movable in one of said guideways, a leaf carrier movable in the other guideway, a lock "for holding the carrier in proximity to the back, a dog pivoted to the carriage and adapted to release the carrier, and means for actuating said dog.

2. A music leaf turner comprising a body and a back, spaced guide members secured thereto and forming two gui'deways, a slotted carriage movable inone of said guideways, a leaf carrier movable'in the other guideway, alock for holding the carrier in proximity to the back, a dog pivoted'to the carriage beneath the slot and adapted to release the carrier, an upright spindle jour nalled in the body, an arm secured to said spindle, the free endof said arm being received in the slot of the carriage and engaging the dog, and means for turning the spindle and the arm.

3. A music leaf turner comprising a body having a back, spaced guide members secured thereto and forming two guideways, a carrier pivoted to the back and movable in one of said guideways, a slotted carriage movable in the other of said guideways, a lock for holding the carrier in proximity to the back, a notch formed in the guide member beneath the carriage. a dog pivoted to said carriage and'a'dapted to release the carrier from its look, a tooth at one end of the dog and engageable in the notch for locking the carriage, an upright spindle journaled inthe body adjacent said back, an arm secured to said spindle and having its free end'received in the slot of the carriage enthe dog, and means for turning the spindle and the arm. i d

In witness whereof I have hereunto set my hand.

JOSEPH PIERRE PLAMONDON. 

